To rename a column using Table Designer. In Object Explorer, right-click the table to which you want to rename columns and choose Design. Under Column Name, select the name you want to change and type a new one.On the File menu, click Save table name.o rename a column using Object Explorer. In Object Explorer, connect to an instance of Database Engine. In Object Explorer, right-click the table in which you want to rename columns and choose Rename. Type a new column name.
In this theory Darwin proposes that 'natural selection' is the mechanism by which evolution functions. Natural selection is a change in the allele frequencies of a species which allows that species to better survive in it's environment.
Natural selection, including sexual selection, is the only known cause of adaptation but not the only known cause of evolution. Other, nonadaptive evolutionary processes include mutation, genetic drift and gene migration.